Cry it out

We have been using the cry it out method for my daughter who is 15 months old and she only cries for like 1-2 minutes and then goes to sleep but its been over a week and I was wondering when they will go to sleep without crying and they’re used to it because it’s hard! Also, she wakes in the night 1 time and will cry 10-15 minutes (even longer if I go in to check on her). I’m not sure what I’m supposed to do at this point or if anyone else has experience with this. She always wakes up bawling whether in our bed (which we coslept prior to her sleeping in her crib) or in the crib so I don’t know what to do.